That did the trick, thank you.
Ok so I've got rid off most tables (apart from one) and incorporated your more elegant code
It didn't prove to be as difficult as I first feared, and apart from a few odd things I still need to sort out, I have now completed re-coding my template.
In finding the best and easiest way to show you guys, I thought I'd use CodePen, which I opened using cbVision's link above. I then proceeded to copy and paste my code over that which was already present, not realizing it would save the changes. Sorry cbVision, I've replaced it with what I'm currently using, which has a few slight changes.
Right, back to the main template.
My old template
http://codepen.io/anon/pen/pomKy
New and improved 
http://codepen.io/anon/pen/Cfmgq
There are a still some things that need addressing.
1. I had to use a table for the 'Sale Information' as couldn't figure out another way due to the right and bottom visable boarders. Would there be a better way of coding this please?
2. As in my old template, I'd like the ordered list aligned completely to the left, but was unable to achieve this. Any ideas please?
3. In CodePen, the font set within CSS of new template doesn't seem to be picked up? Is that normal or is there something wrong with my code?
Overall what do you guys think of new template, in terms of coding compared to the old? When you have a spare moment, it would be great if you could skim through new template to check for errors, possible improvements and optimization. Please note that .hw_ebay_pictures, .hw_ebay_pictures img and hw_ebay_description are to remain, as these pull in details and pictures from my store/ebay platform.
My day is almost over, so I'll pick this up again on Monday. Thanks again for your help and hope you have a great weekend. 